When removing the bearing for inspection, make a record of its appearance by photography or other methods. During machine tool precision bearing tasks, not only rolling friction occurs between the ferrule, rolling element and the cage, but also sliding friction occurs, which causes the bearing parts to wear continuously. In order to decrease the wear of the bearing parts, maintain the accuracy and stability of the bearing, and extend the service life, the bearing steel should have good wear resistance. Also, check the amount of remaining lubricant and sample the lubricant before cleaning the bearing.

The bearing is cleaned in rough and fine washing, and a metal grid can be placed on the bottom of the container.

For rough washing, remove grease or stickies with a brush or the like in oil. If the bearing is turned in oil at this time, take care to prevent damage to the rolling surface due to foreign matter.

During fine washing, rotate the bearing slowly in oil, it must be done carefully.

Generally, the cleaning agent used is a neutral non-aqueous diesel oil or kerosene. If necessary, a mild alkaline solution may be used. No matter what kind of cleaning agent is used, always filter to keep it clean.

Immediately after cleaning, apply antirust oil or antirust grease to the bearings.